/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 刘柄华
 * Date: 2022-05-24
 * Time: 22:31
 */
public class TestDemo01 {
    public static void main(String[] args) {
        A a1 = new A("he");
        A a2 = new A("he");
        System.out.println(a1==a2);
    }

    public static void main1(String[] args) {
        int a = 10;
        double b = 3.14;
        System.out.println('A'+a+b);  //78.14
    }
}

class A{
    public A(String str){

    }
}
